Worsted Wool:A wool yarn spun under the Worsted system. This type of spinning aligns longer 3.5" to 5" fibers parallel to each other to provide extreme strength and durability.

Stretch Nylon:Continuous nylon filaments that are crimped and heat set to provide elasticity. Due to the relatively high level of elasticity imparted to nylon after it is crimped and heat set, it is very commonly utilized to make stretch socks in combination with other yarns.